Issue Title: Yarn Command Execution Failure: Global Commands Deprecated

Bug Description
Any time I try to run get claude to run yarn commands I get : Error: /var/folders/2p/st782c7974n9q47lcqlcxdh40000gn/T/claude-shell-snapshot-0089:export:6951: not valid in this context: global commands have been removed in 2.x - consider using yarn

Environment Info

• Platform: macos
• Terminal: iTerm.app
• Version: 0.2.100
• Feedback ID: f4b8d48a-bc2a-4f11-b23c-b9b3b09a9240

Errors

[{"error":"ShellError: Shell command failed\n    at Object.call (file:///Users/samuelwalker/.nvm/versions/node/v20.19.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:1321:880)\n    at async bI8 (file:///Users/samuelwalker/.nvm/versions/node/v20.19.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2007:15442)\n    at async gz1 (file:///Users/samuelwalker/.nvm/versions/node/v20.19.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2007:13808)\n    at async xI8 (file:///Users/samuelwalker/.nvm/versions/node/v20.19.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2007:13088)\n    at async v60 (file:///Users/samuelwalker/.nvm/versions/node/v20.19.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2007:13022)\n    at async rt (file:///Users/samuelwalker/.nvm/versions/node/v20.19.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2007:12267)\n    at async Y4 (file:///Users/samuelwalker/.nvm/versions/node/v20.19.0/lib/node_modules/@anthropic-ai/claude-code/cli.js:2057:1570)","timestamp":"2025-05-02T22:38:15.578Z"}]